{"parents":["0de5b11485b9edc5aec0f5a95ef886a294c03b2d"],"body":"The flag is enabled everywhere, I think we can remove it now.","files":[{"status":"M","path":"packages\/react-dom-bindings\/src\/client\/ReactDOMComponent.js"},{"status":"M","path":"packages\/react-dom-bindings\/src\/client\/ReactDOMComponentTree.js"},{"status":"M","path":"packages\/react-dom-bindings\/src\/client\/ReactFiberConfigDOM.js"},{"status":"M","path":"packages\/react-dom-bindings\/src\/events\/DOMPluginEventSystem.js"},{"status":"M","path":"packages\/react-dom-bindings\/src\/events\/plugins\/EnterLeaveEventPlugin.js"},{"status":"M","path":"packages\/react-dom\/src\/__tests__\/ReactDOMFloat-test.js"},{"status":"M","path":"packages\/react-dom\/src\/__tests__\/ReactDOMRoot-test.js"},{"status":"M","path":"packages\/react-dom\/src\/__tests__\/ReactDOMSingletonComponents-test.js"},{"status":"M","path":"packages\/react-dom\/src\/__tests__\/ReactMount-test.js"},{"status":"M","path":"packages\/react-dom\/src\/__tests__\/ReactRenderDocument-test.js"},{"status":"M","path":"packages\/react-dom\/src\/__tests__\/validateDOMNesting-test.js"},{"status":"M","path":"packages\/react-dom\/src\/client\/ReactDOMLegacy.js"},{"status":"M","path":"packages\/react-dom\/src\/client\/ReactDOMRoot.js"},{"status":"M","path":"packages\/react-dom\/src\/test-utils\/ReactTestUtils.js"},{"status":"M","path":"packages\/react-reconciler\/src\/ReactFiber.js"},{"status":"M","path":"packages\/react-reconciler\/src\/ReactFiberBeginWork.js"},{"status":"M","path":"packages\/react-reconciler\/src\/ReactFiberCommitWork.js"},{"status":"M","path":"packages\/react-reconciler\/src\/ReactFiberCompleteWork.js"},{"status":"M","path":"packages\/react-reconciler\/src\/ReactFiberHotReloading.js"},{"status":"M","path":"packages\/react-reconciler\/src\/ReactFiberHydrationContext.js"},{"status":"M","path":"packages\/react-reconciler\/src\/ReactFiberTreeReflection.js"},{"status":"M","path":"packages\/shared\/ReactFeatureFlags.js"},{"status":"M","path":"packages\/shared\/forks\/ReactFeatureFlags.native-fb.js"},{"status":"M","path":"packages\/shared\/forks\/ReactFeatureFlags.native-oss.js"},{"status":"M","path":"packages\/shared\/forks\/ReactFeatureFlags.test-renderer.js"},{"status":"M","path":"packages\/shared\/forks\/ReactFeatureFlags.test-renderer.native.js"},{"status":"M","path":"packages\/shared\/forks\/ReactFeatureFlags.test-renderer.www.js"},{"status":"M","path":"packages\/shared\/forks\/ReactFeatureFlags.www.js"}],"patch":"diff --git a\/packages\/react-dom-bindings\/src\/client\/ReactDOMComponent.js b\/packages\/react-dom-bindings\/src\/client\/ReactDOMComponent.js\nindex edfb945c35..a94c990733 100644\n--- a\/packages\/react-dom-bindings\/src\/client\/ReactDOMComponent.js\n+++ b\/packages\/react-dom-bindings\/src\/client\/ReactDOMComponent.js\n@@ -69,7 +69,6 @@ import {\n enableCustomElementPropertySupport,\n enableClientRenderFallbackOnTextMismatch,\n enableFormActions,\n- enableHostSingletons,\n disableIEWorkarounds,\n enableTrustedTypesIntegration,\n enableFilterEmptyStringAttributesDOM,\n@@ -394,8 +393,7 @@ function setProp(\n \/\/ show within the

until it has been focused and blurred again.\n         \/\/ https:\/\/github.com\/facebook\/react\/issues\/6731#issuecomment-254874553\n         const canSetTextContent =\n-          (!enableHostSingletons || tag !== 'body') &&\n-          (tag !== 'textarea' || value !== '');\n+          tag !== 'body' && (tag !== 'textarea' || value !== '');\n         if (canSetTextContent) {\n           setTextContent(domElement, value);\n         }\n@@ -403,7 +401,7 @@ function setProp(\n         if (__DEV__) {\n           validateTextNesting('' + value, tag);\n         }\n-        const canSetTextContent = !enableHostSingletons || tag !== 'body';\n+        const canSetTextContent = tag !== 'body';\n         if (canSetTextContent) {\n           setTextContent(domElement, '' + value);\n         }\n@@ -2822,7 +2820,7 @@ export function diffHydratedProperties(\n         \/\/ we can get away with it.\n         \/\/ Host singletons get their children appended and don't use the text\n         \/\/ content mechanism.\n-        if (!enableHostSingletons || tag !== 'body') {\n+        if (tag !== 'body') {\n           domElement.textContent = (children: any);\n         }\n       }\ndiff --git a\/packages\/react-dom-bindings\/src\/client\/ReactDOMComponentTree.js b\/packages\/react-dom-bindings\/src\/client\/ReactDOMComponentTree.js\nindex 839f346c9d..7007a520b8 100644\n--- a\/packages\/react-dom-bindings\/src\/client\/ReactDOMComponentTree.js\n+++ b\/packages\/react-dom-bindings\/src\/client\/ReactDOMComponentTree.js\n@@ -34,11 +34,7 @@ import {\n \n import {getParentSuspenseInstance} from '.\/ReactFiberConfigDOM';\n \n-import {\n-  enableScopeAPI,\n-  enableFloat,\n-  enableHostSingletons,\n-} from 'shared\/ReactFeatureFlags';\n+import {enableScopeAPI, enableFloat} from 'shared\/ReactFeatureFlags';\n \n const randomKey = Math.random().toString(36).slice(2);\n const internalInstanceKey = '__reactFiber$' + randomKey;\n@@ -180,7 +176,7 @@ export function getInstanceFromNode(node: Node): Fiber | null {\n       tag === HostText ||\n       tag === SuspenseComponent ||\n       (enableFloat ? tag === HostHoistable : false) ||\n-      (enableHostSingletons ? tag === HostSingleton : false) ||\n+      tag === HostSingleton ||\n       tag === HostRoot\n     ) {\n       return inst;\n@@ -200,7 +196,7 @@ export function getNodeFromInstance(inst: Fiber): Instance | TextInstance {\n   if (\n     tag === HostComponent ||\n     (enableFloat ? tag === HostHoistable : false) ||\n-    (enableHostSingletons ? tag === HostSingleton : false) ||\n+    tag === HostSingleton ||\n     tag === HostText\n   ) {\n     \/\/ In Fiber this, is just the state node right now. We assume it will be\ndiff --git a\/packages\/react-dom-bindings\/src\/client\/ReactFiberConfigDOM.js b\/packages\/react-dom-bindings\/src\/client\/ReactFiberConfigDOM.js\nindex 5a8a2ca237..a83d4981d4 100644\n--- a\/packages\/react-dom-bindings\/src\/client\/ReactFiberConfigDOM.js\n+++ b\/packages\/react-dom-bindings\/src\/client\/ReactFiberConfigDOM.js\n@@ -92,7 +92,6 @@ import {\n   enableCreateEventHandleAPI,\n   enableScopeAPI,\n   enableFloat,\n-  enableHostSingletons,\n   enableTrustedTypesIntegration,\n   enableFormActions,\n   enableAsyncActions,\n@@ -939,32 +938,18 @@ export function unhideTextInstance(\n }\n \n export function clearContainer(container: Container): void {\n-  if (enableHostSingletons) {\n-    const nodeType = container.nodeType;\n-    if (nodeType === DOCUMENT_NODE) {\n-      clearContainerSparingly(container);\n-    } else if (nodeType === ELEMENT_NODE) {\n-      switch (container.nodeName) {\n-        case 'HEAD':\n-        case 'HTML':\n-        case 'BODY':\n-          clearContainerSparingly(container);\n-          return;\n-        default: {\n-          container.textContent = '';\n-        }\n-      }\n-    }\n-  } else {\n-    if (container.nodeType === ELEMENT_NODE) {\n-      \/\/ We have refined the container to Element type\n-      const element: Element = (container: any);\n-      element.textContent = '';\n-    } else if (container.nodeType === DOCUMENT_NODE) {\n-      \/\/ We have refined the container to Document type\n-      const doc: Document = (container: any);\n-      if (doc.documentElement) {\n-        doc.removeChild(doc.documentElement);\n+  const nodeType = container.nodeType;\n+  if (nodeType === DOCUMENT_NODE) {\n+    clearContainerSparingly(container);\n+  } else if (nodeType === ELEMENT_NODE) {\n+    switch (container.nodeName) {\n+      case 'HEAD':\n+      case 'HTML':\n+      case 'BODY':\n+        clearContainerSparingly(container);\n+        return;\n+      default: {\n+        container.textContent = '';\n       }\n     }\n   }\n@@ -1053,7 +1038,7 @@ export function canHydrateInstance(\n     const element: Element = (instance: any);\n     const anyProps = (props: any);\n     if (element.nodeName.toLowerCase() !== type.toLowerCase()) {\n-      if (!inRootOrSingleton || !enableHostSingletons) {\n+      if (!inRootOrSingleton) {\n         \/\/ Usually we error for mismatched tags.\n         if (\n           enableFormActions &&\n@@ -1067,7 +1052,7 @@ export function canHydrateInstance(\n         }\n       }\n       \/\/ In root or singleton parents we skip past mismatched instances.\n-    } else if (!inRootOrSingleton || !enableHostSingletons) {\n+    } else if (!inRootOrSingleton) {\n       \/\/ Match\n       if (\n         enableFormActions &&\n@@ -1212,7 +1197,7 @@ export function canHydrateTextInstance(\n     ) {\n       \/\/ If we have extra hidden inputs, we don't mismatch. This allows us to\n       \/\/ embed extra form data in the original form.\n-    } else if (!inRootOrSingleton || !enableHostSingletons) {\n+    } else if (!inRootOrSingleton) {\n       return null;\n     }\n     const nextInstance = getNextHydratableSibling(instance);\n@@ -1230,7 +1215,7 @@ export function canHydrateSuspenseInstance(\n   inRootOrSingleton: boolean,\n ): null | SuspenseInstance {\n   while (instance.nodeType !== COMMENT_NODE) {\n-    if (!inRootOrSingleton || !enableHostSingletons) {\n+    if (!inRootOrSingleton) {\n       return null;\n     }\n     const nextInstance = getNextHydratableSibling(instance);\n@@ -1292,7 +1277,7 @@ export function canHydrateFormStateMarker(\n   inRootOrSingleton: boolean,\n ): null | FormStateMarkerInstance {\n   while (instance.nodeType !== COMMENT_NODE) {\n-    if (!inRootOrSingleton || !enableHostSingletons) {\n+    if (!inRootOrSingleton) {\n       return null;\n     }\n     const nextInstance = getNextHydratableSibling(instance);\n@@ -1501,9 +1486,7 @@ export function shouldDeleteUnhydratedTailInstances(\n   parentType: string,\n ): boolean {\n   return (\n-    (enableHostSingletons ||\n-      (parentType !== 'head' && parentType !== 'body')) &&\n-    (!enableFormActions || (parentType !== 'form' && parentType !== 'button'))\n+    !enableFormActions || (parentType !== 'form' && parentType !== 'button')\n   );\n }\n \ndiff --git a\/packages\/react-dom-bindings\/src\/events\/DOMPluginEventSystem.js b\/packages\/react-dom-bindings\/src\/events\/DOMPluginEventSystem.js\nindex 22c15a676c..ca89e1d1bd 100644\n--- a\/packages\/react-dom-bindings\/src\/events\/DOMPluginEventSystem.js\n+++ b\/packages\/react-dom-bindings\/src\/events\/DOMPluginEventSystem.js\n@@ -53,7 +53,6 @@ import {\n   enableCreateEventHandleAPI,\n   enableScopeAPI,\n   enableFloat,\n-  enableHostSingletons,\n   enableFormActions,\n } from 'shared\/ReactFeatureFlags';\n import {\n@@ -637,7 +636,7 @@ export function dispatchEventForPluginEventSystem(\n               parentTag === HostComponent ||\n               parentTag === HostText ||\n               (enableFloat ? parentTag === HostHoistable : false) ||\n-              (enableHostSingletons ? parentTag === HostSingleton : false)\n+              parentTag === HostSingleton\n             ) {\n               node = ancestorInst = parentNode;\n               continue mainLoop;\n@@ -695,7 +694,7 @@ export function accumulateSinglePhaseListeners(\n     if (\n       (tag === HostComponent ||\n         (enableFloat ? tag === HostHoistable : false) ||\n-        (enableHostSingletons ? tag === HostSingleton : false)) &&\n+        tag === HostSingleton) &&\n       stateNode !== null\n     ) {\n       lastHostComponent = stateNode;\n@@ -809,7 +808,7 @@ export function accumulateTwoPhaseListeners(\n     if (\n       (tag === HostComponent ||\n         (enableFloat ? tag === HostHoistable : false) ||\n-        (enableHostSingletons ? tag === HostSingleton : false)) &&\n+        tag === HostSingleton) &&\n       stateNode !== null\n     ) {\n       const currentTarget = stateNode;\n@@ -843,11 +842,7 @@ function getParent(inst: Fiber | null): Fiber | null {\n     \/\/ events to their parent. We could also go through parentNode on the\n     \/\/ host node but that wouldn't work for React Native and doesn't let us\n     \/\/ do the portal feature.\n-  } while (\n-    inst &&\n-    inst.tag !== HostComponent &&\n-    (!enableHostSingletons ? true : inst.tag !== HostSingleton)\n-  );\n+  } while (inst && inst.tag !== HostComponent && inst.tag !== HostSingleton);\n   if (inst) {\n     return inst;\n   }\n@@ -916,7 +911,7 @@ function accumulateEnterLeaveListenersForEvent(\n     if (\n       (tag === HostComponent ||\n         (enableFloat ? tag === HostHoistable : false) ||\n-        (enableHostSingletons ? tag === HostSingleton : false)) &&\n+        tag === HostSingleton) &&\n       stateNode !== null\n     ) {\n       const currentTarget = stateNode;\ndiff --git a\/packages\/react-dom-bindings\/src\/events\/plugins\/EnterLeaveEventPlugin.js b\/packages\/react-dom-bindings\/src\/events\/plugins\/EnterLeaveEventPlugin.js\nindex 1512f2c80d..e8f08b55d9 100644\n--- a\/packages\/react-dom-bindings\/src\/events\/plugins\/EnterLeaveEventPlugin.js\n+++ b\/packages\/react-dom-bindings\/src\/events\/plugins\/EnterLeaveEventPlugin.js\n@@ -24,7 +24,6 @@ import {\n } from '..\/..\/client\/ReactDOMComponentTree';\n import {accumulateEnterLeaveTwoPhaseListeners} from '..\/DOMPluginEventSystem';\n \n-import {enableHostSingletons} from 'shared\/ReactFeatureFlags';\n import {\n   HostComponent,\n   HostSingleton,\n@@ -110,9 +109,7 @@ function extractEvents(\n       const tag = to.tag;\n       if (\n         to !== nearestMounted ||\n-        (tag !== HostComponent &&\n-          (!enableHostSingletons ? true : tag !== HostSingleton) &&\n-          tag !== HostText)\n+        (tag !== HostComponent && tag !== HostSingleton && tag !== HostText)\n       ) {\n         to = null;\n       }\ndiff --git a\/packages\/react-dom\/src\/__tests__\/ReactDOMFloat-test.js b\/packages\/react-dom\/src\/__tests__\/ReactDOMFloat-test.js\nindex 622722a947..2cc4df5d77 100644\n--- a\/packages\/react-dom\/src\/__tests__\/ReactDOMFloat-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/ReactDOMFloat-test.js\n@@ -6202,7 +6202,7 @@ body {\n       );\n     });\n \n-    \/\/ @gate enableFloat && enableHostSingletons && enableClientRenderFallbackOnTextMismatch\n+    \/\/ @gate enableFloat && enableClientRenderFallbackOnTextMismatch\n     it('retains styles even when a new html, head, and\/body mount', async () => {\n       await act(() => {\n         const {pipe} = renderToPipeableStream(\n@@ -6254,58 +6254,7 @@ body {\n       );\n     });\n \n-    \/\/ @gate enableFloat && !enableHostSingletons\n-    it('retains styles even when a new html, head, and\/body mount - without HostSingleton', async () => {\n-      await act(() => {\n-        const {pipe} = renderToPipeableStream(\n-          <html>\n-            <head \/>\n-            <body>\n-              <link rel=\"stylesheet\" href=\"foo\" precedence=\"foo\" \/>\n-              <link rel=\"stylesheet\" href=\"bar\" precedence=\"bar\" \/>\n-              server\n-            <\/body>\n-          <\/html>,\n-        );\n-        pipe(writable);\n-      });\n-      const errors = [];\n-      ReactDOMClient.hydrateRoot(\n-        document,\n-        <html>\n-          <head>\n-            <link rel=\"stylesheet\" href=\"qux\" precedence=\"qux\" \/>\n-            <link rel=\"stylesheet\" href=\"foo\" precedence=\"foo\" \/>\n-          <\/head>\n-          <body>client<\/body>\n-        <\/html>,\n-        {\n-          onRecoverableError(error) {\n-            errors.push(error.message);\n-          },\n-        },\n-      );\n-      await expect(async () => {\n-        await waitForAll([]);\n-      }).toErrorDev(\n-        [\n-          'Warning: Text content did not match. Server: \"server\" Client: \"client\"',\n-          'Warning: An error occurred during hydration. The server HTML was replaced with client content in <#document>.',\n-        ],\n-        {withoutStack: 1},\n-      );\n-      expect(getMeaningfulChildren(document)).toEqual(\n-        <html>\n-          <head>\n-            <link rel=\"stylesheet\" href=\"qux\" data-precedence=\"qux\" \/>\n-            <link rel=\"stylesheet\" href=\"foo\" data-precedence=\"foo\" \/>\n-          <\/head>\n-          <body>client<\/body>\n-        <\/html>,\n-      );\n-    });\n-\n-    \/\/ @gate enableFloat && enableHostSingletons\n+    \/\/ @gate enableFloat\n     it('retains styles in head through head remounts', async () => {\n       const root = ReactDOMClient.createRoot(document);\n       root.render(\n@@ -8114,7 +8063,7 @@ background-color: green;\n       ]);\n     });\n \n-    \/\/ @gate enableFloat && enableHostSingletons && (enableClientRenderFallbackOnTextMismatch || !__DEV__)\n+    \/\/ @gate enableFloat && (enableClientRenderFallbackOnTextMismatch || !__DEV__)\n     it('can render a title before a singleton even if that singleton clears its contents', async () => {\n       await act(() => {\n         const {pipe} = renderToPipeableStream(\ndiff --git a\/packages\/react-dom\/src\/__tests__\/ReactDOMRoot-test.js b\/packages\/react-dom\/src\/__tests__\/ReactDOMRoot-test.js\nindex c601691c96..8a24113526 100644\n--- a\/packages\/react-dom\/src\/__tests__\/ReactDOMRoot-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/ReactDOMRoot-test.js\n@@ -375,7 +375,7 @@ describe('ReactDOMRoot', () => {\n     await waitForAll([]);\n     container.innerHTML = '';\n \n-    if (gate(flags => flags.enableFloat || flags.enableHostSingletons)) {\n+    if (gate(flags => flags.enableFloat)) {\n       \/\/ When either of these flags are on this validation is turned off so we\n       \/\/ expect there to be no warnings\n       root.render(<div>Hi<\/div>);\ndiff --git a\/packages\/react-dom\/src\/__tests__\/ReactDOMSingletonComponents-test.js b\/packages\/react-dom\/src\/__tests__\/ReactDOMSingletonComponents-test.js\nindex 7d1bddbe66..9c4c3fc913 100644\n--- a\/packages\/react-dom\/src\/__tests__\/ReactDOMSingletonComponents-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/ReactDOMSingletonComponents-test.js\n@@ -123,7 +123,7 @@ describe('ReactDOM HostSingleton', () => {\n       : children;\n   }\n \n-  \/\/ @gate enableHostSingletons && enableFloat\n+  \/\/ @gate enableFloat\n   it('warns if you render the same singleton twice at the same time', async () => {\n     const root = ReactDOMClient.createRoot(document);\n     root.render(\n@@ -208,16 +208,8 @@ describe('ReactDOM HostSingleton', () => {\n     );\n   });\n \n-  \/\/ @gate enableHostSingletons && enableFloat\n+  \/\/ @gate enableFloat\n   it('renders into html, head, and body persistently so the node identities never change and extraneous styles are retained', async () => {\n-    gate(flags => {\n-      if (flags.enableHostSingletons !== true) {\n-        \/\/ We throw here because when this test fails it ends up with sync work in a microtask\n-        \/\/ that throws after the expectTestToFail check asserts the failure. this causes even the\n-        \/\/ expected failure to fail. This just fails explicitly and early\n-        throw new Error('manually opting out of test');\n-      }\n-    });\n     \/\/ Server render some html that will get replaced with a client render\n     await actIntoEmptyDocument(() => {\n       const {pipe} = ReactDOMFizzServer.renderToPipeableStream(\n@@ -601,7 +593,6 @@ describe('ReactDOM HostSingleton', () => {\n   });\n \n   \/\/ This test is not supported in this implementation. If we reintroduce insertion edge we should revisit\n-  \/\/ @gate enableHostSingletons\n   xit('is able to maintain insertions in head and body between tree-adjacent Nodes', async () => {\n     \/\/ Server render some html and hydrate on the client\n     await actIntoEmptyDocument(() => {\n@@ -732,7 +723,6 @@ describe('ReactDOM HostSingleton', () => {\n     );\n   });\n \n-  \/\/ @gate enableHostSingletons\n   it('clears persistent head and body when html is the container', async () => {\n     await actIntoEmptyDocument(() => {\n       const {pipe} = ReactDOMFizzServer.renderToPipeableStream(\n@@ -785,7 +775,6 @@ describe('ReactDOM HostSingleton', () => {\n     );\n   });\n \n-  \/\/ @gate enableHostSingletons\n   it('clears persistent head when it is the container', async () => {\n     await actIntoEmptyDocument(() => {\n       const {pipe} = ReactDOMFizzServer.renderToPipeableStream(\n@@ -817,7 +806,7 @@ describe('ReactDOM HostSingleton', () => {\n     );\n   });\n \n-  \/\/ @gate enableHostSingletons && enableFloat\n+  \/\/ @gate enableFloat\n   it('clears persistent body when it is the container', async () => {\n     await actIntoEmptyDocument(() => {\n       const {pipe} = ReactDOMFizzServer.renderToPipeableStream(\n@@ -974,7 +963,6 @@ describe('ReactDOM HostSingleton', () => {\n     );\n   });\n \n-  \/\/ @gate enableHostSingletons\n   it('allows for hydrating without a head', async () => {\n     await actIntoEmptyDocument(() => {\n       const {pipe} = ReactDOMFizzServer.renderToPipeableStream(\ndiff --git a\/packages\/react-dom\/src\/__tests__\/ReactMount-test.js b\/packages\/react-dom\/src\/__tests__\/ReactMount-test.js\nindex df92131a7c..b679466b25 100644\n--- a\/packages\/react-dom\/src\/__tests__\/ReactMount-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/ReactMount-test.js\n@@ -149,17 +149,8 @@ describe('ReactMount', () => {\n     const iFrame = document.createElement('iframe');\n     document.body.appendChild(iFrame);\n \n-    if (gate(flags => flags.enableHostSingletons)) {\n-      \/\/ HostSingletons make the warning for document.body unecessary\n-      ReactDOM.render(<div \/>, iFrame.contentDocument.body);\n-    } else {\n-      expect(() =>\n-        ReactDOM.render(<div \/>, iFrame.contentDocument.body),\n-      ).toErrorDev(\n-        'Rendering components directly into document.body is discouraged',\n-        {withoutStack: true},\n-      );\n-    }\n+    \/\/ HostSingletons make the warning for document.body unecessary\n+    ReactDOM.render(<div \/>, iFrame.contentDocument.body);\n   });\n \n   it('should account for escaping on a checksum mismatch', () => {\ndiff --git a\/packages\/react-dom\/src\/__tests__\/ReactRenderDocument-test.js b\/packages\/react-dom\/src\/__tests__\/ReactRenderDocument-test.js\nindex a746e5e9f0..1ca24a5cdb 100644\n--- a\/packages\/react-dom\/src\/__tests__\/ReactRenderDocument-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/ReactRenderDocument-test.js\n@@ -62,7 +62,6 @@ describe('rendering React components at document', () => {\n       expect(body === testDocument.body).toBe(true);\n     });\n \n-    \/\/ @gate enableHostSingletons\n     it('should be able to unmount component from document node, but leaves singleton nodes intact', () => {\n       class Root extends React.Component {\n         render() {\n@@ -95,31 +94,6 @@ describe('rendering React components at document', () => {\n       expect(originalHead.firstChild).toEqual(null);\n     });\n \n-    \/\/ @gate !enableHostSingletons\n-    it('should be able to unmount component from document node', () => {\n-      class Root extends React.Component {\n-        render() {\n-          return (\n-            <html>\n-              <head>\n-                <title>Hello World<\/title>\n-              <\/head>\n-              <body>Hello world<\/body>\n-            <\/html>\n-          );\n-        }\n-      }\n-\n-      const markup = ReactDOMServer.renderToString(<Root \/>);\n-      const testDocument = getTestDocument(markup);\n-      ReactDOM.hydrate(<Root \/>, testDocument);\n-      expect(testDocument.body.innerHTML).toBe('Hello world');\n-\n-      \/\/ When we unmount everything is removed except the persistent nodes of html, head, and body\n-      ReactDOM.unmountComponentAtNode(testDocument);\n-      expect(testDocument.firstChild).toBe(null);\n-    });\n-\n     it('should not be able to switch root constructors', () => {\n       class Component extends React.Component {\n         render() {\ndiff --git a\/packages\/react-dom\/src\/__tests__\/validateDOMNesting-test.js b\/packages\/react-dom\/src\/__tests__\/validateDOMNesting-test.js\nindex ca1d921134..da7c7f3acb 100644\n--- a\/packages\/react-dom\/src\/__tests__\/validateDOMNesting-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/validateDOMNesting-test.js\n@@ -38,15 +38,7 @@ function expectWarnings(tags, warnings = [], withoutStack = 0) {\n describe('validateDOMNesting', () => {\n   it('allows valid nestings', () => {\n     expectWarnings(['table', 'tbody', 'tr', 'td', 'b']);\n-    expectWarnings(\n-      ['body', 'datalist', 'option'],\n-      [\n-        gate(flags => !flags.enableHostSingletons)\n-          ? 'render(): Rendering components directly into document.body is discouraged'\n-          : null,\n-      ].filter(Boolean),\n-      1,\n-    );\n+    expectWarnings(['body', 'datalist', 'option']);\n     expectWarnings(['div', 'a', 'object', 'a']);\n     expectWarnings(['div', 'p', 'button', 'p']);\n     expectWarnings(['p', 'svg', 'foreignObject', 'p']);\n@@ -106,45 +98,22 @@ describe('validateDOMNesting', () => {\n           '    in html (at **)',\n       ],\n     );\n-    if (gate(flags => flags.enableHostSingletons)) {\n-      expectWarnings(\n-        ['body', 'body'],\n-        [\n-          'validateDOMNesting(...): <body> cannot appear as a child of <body>.\\n' +\n-            '    in body (at **)',\n-        ],\n-      );\n-    } else {\n-      expectWarnings(\n-        ['body', 'body'],\n-        [\n-          'render(): Rendering components directly into document.body is discouraged',\n-          'validateDOMNesting(...): <body> cannot appear as a child of <body>.\\n' +\n-            '    in body (at **)',\n-        ],\n-        1,\n-      );\n-    }\n-    if (gate(flags => flags.enableHostSingletons)) {\n-      expectWarnings(\n-        ['svg', 'foreignObject', 'body', 'p'],\n-        [\n-          'validateDOMNesting(...): <body> cannot appear as a child of <foreignObject>.\\n' +\n-            '    in body (at **)\\n' +\n-            '    in foreignObject (at **)',\n-          'Warning: You are mounting a new body component when a previous one has not first unmounted. It is an error to render more than one body component at a time and attributes and children of these components will likely fail in unpredictable ways. Please only render a single instance of <body> and if you need to mount a new one, ensure any previous ones have unmounted first.\\n' +\n-            '    in body (at **)',\n-        ],\n-      );\n-    } else {\n-      expectWarnings(\n-        ['svg', 'foreignObject', 'body', 'p'],\n-        [\n-          'validateDOMNesting(...): <body> cannot appear as a child of <foreignObject>.\\n' +\n-            '    in body (at **)\\n' +\n-            '    in foreignObject (at **)',\n-        ],\n-      );\n-    }\n+    expectWarnings(\n+      ['body', 'body'],\n+      [\n+        'validateDOMNesting(...): <body> cannot appear as a child of <body>.\\n' +\n+          '    in body (at **)',\n+      ],\n+    );\n+    expectWarnings(\n+      ['svg', 'foreignObject', 'body', 'p'],\n+      [\n+        'validateDOMNesting(...): <body> cannot appear as a child of <foreignObject>.\\n' +\n+          '    in body (at **)\\n' +\n+          '    in foreignObject (at **)',\n+        'Warning: You are mounting a new body component when a previous one has not first unmounted. It is an error to render more than one body component at a time and attributes and children of these components will likely fail in unpredictable ways. Please only render a single instance of <body> and if you need to mount a new one, ensure any previous ones have unmounted first.\\n' +\n+          '    in body (at **)',\n+      ],\n+    );\n   });\n });\ndiff --git a\/packages\/react-dom\/src\/client\/ReactDOMLegacy.js b\/packages\/react-dom\/src\/client\/ReactDOMLegacy.js\nindex ce0c9ff609..4937ce3f96 100644\n--- a\/packages\/react-dom\/src\/client\/ReactDOMLegacy.js\n+++ b\/packages\/react-dom\/src\/client\/ReactDOMLegacy.js\n@@ -43,7 +43,6 @@ import {LegacyRoot} from 'react-reconciler\/src\/ReactRootTags';\n import getComponentNameFromType from 'shared\/getComponentNameFromType';\n import ReactSharedInternals from 'shared\/ReactSharedInternals';\n import {has as hasInstance} from 'shared\/ReactInstanceMap';\n-import {enableHostSingletons} from '..\/..\/..\/shared\/ReactFeatureFlags';\n \n const ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;\n \n@@ -79,21 +78,6 @@ if (__DEV__) {\n           'and render the new components instead of calling ReactDOM.render.',\n       );\n     }\n-\n-    if (\n-      !enableHostSingletons &&\n-      container.nodeType === ELEMENT_NODE &&\n-      ((container: any): Element).tagName &&\n-      ((container: any): Element).tagName.toUpperCase() === 'BODY'\n-    ) {\n-      console.error(\n-        'render(): Rendering components directly into document.body is ' +\n-          'discouraged, since its children are often manipulated by third-party ' +\n-          'scripts and browser extensions. This may lead to subtle ' +\n-          'reconciliation issues. Try rendering into a container element created ' +\n-          'for your app.',\n-      );\n-    }\n   };\n }\n \ndiff --git a\/packages\/react-dom\/src\/client\/ReactDOMRoot.js b\/packages\/react-dom\/src\/client\/ReactDOMRoot.js\nindex ea36929cac..0e3579eb37 100644\n--- a\/packages\/react-dom\/src\/client\/ReactDOMRoot.js\n+++ b\/packages\/react-dom\/src\/client\/ReactDOMRoot.js\n@@ -18,7 +18,6 @@ import {queueExplicitHydrationTarget} from 'react-dom-bindings\/src\/events\/ReactD\n import {REACT_ELEMENT_TYPE} from 'shared\/ReactSymbols';\n import {\n   enableFloat,\n-  enableHostSingletons,\n   allowConcurrentByDefault,\n   disableCommentsAsDOMContainers,\n   enableAsyncActions,\n@@ -78,7 +77,6 @@ import {\n   createContainer,\n   createHydrationContainer,\n   updateContainer,\n-  findHostInstanceWithNoPortals,\n   flushSync,\n   isAlreadyRendering,\n } from 'react-reconciler\/src\/ReactFiberReconciler';\n@@ -127,26 +125,6 @@ ReactDOMHydrationRoot.prototype.render = ReactDOMRoot.prototype.render =\n             'one argument.',\n         );\n       }\n-\n-      const container = root.containerInfo;\n-\n-      if (\n-        !enableFloat &&\n-        !enableHostSingletons &&\n-        container.nodeType !== COMMENT_NODE\n-      ) {\n-        const hostInstance = findHostInstanceWithNoPortals(root.current);\n-        if (hostInstance) {\n-          if (hostInstance.parentNode !== container) {\n-            console.error(\n-              'render(...): It looks like the React-rendered content of the ' +\n-                'root container was removed without using React. This is not ' +\n-                'supported and will cause errors. Instead, call ' +\n-                \"root.unmount() to empty a root's container.\",\n-            );\n-          }\n-        }\n-      }\n     }\n     updateContainer(children, root, null, null);\n   };\n@@ -381,20 +359,6 @@ export function isValidContainerLegacy(node: any): boolean {\n \n function warnIfReactDOMContainerInDEV(container: any) {\n   if (__DEV__) {\n-    if (\n-      !enableHostSingletons &&\n-      container.nodeType === ELEMENT_NODE &&\n-      ((container: any): Element).tagName &&\n-      ((container: any): Element).tagName.toUpperCase() === 'BODY'\n-    ) {\n-      console.error(\n-        'createRoot(): Creating roots directly with document.body is ' +\n-          'discouraged, since its children are often manipulated by third-party ' +\n-          'scripts and browser extensions. This may lead to subtle ' +\n-          'reconciliation issues. Try using a container element created ' +\n-          'for your app.',\n-      );\n-    }\n     if (isContainerMarkedAsRoot(container)) {\n       if (container._reactRootContainer) {\n         console.error(\ndiff --git a\/packages\/react-dom\/src\/test-utils\/ReactTestUtils.js b\/packages\/react-dom\/src\/test-utils\/ReactTestUtils.js\nindex 04a69bcd81..568e832719 100644\n--- a\/packages\/react-dom\/src\/test-utils\/ReactTestUtils.js\n+++ b\/packages\/react-dom\/src\/test-utils\/ReactTestUtils.js\n@@ -25,7 +25,7 @@ import {\n   rethrowCaughtError,\n   invokeGuardedCallbackAndCatchFirstError,\n } from 'shared\/ReactErrorUtils';\n-import {enableFloat, enableHostSingletons} from 'shared\/ReactFeatureFlags';\n+import {enableFloat} from 'shared\/ReactFeatureFlags';\n import assign from 'shared\/assign';\n import isArray from 'shared\/isArray';\n \n@@ -66,7 +66,7 @@ function findAllInRenderedFiberTreeInternal(fiber, test) {\n       node.tag === ClassComponent ||\n       node.tag === FunctionComponent ||\n       (enableFloat ? node.tag === HostHoistable : false) ||\n-      (enableHostSingletons ? node.tag === HostSingleton : false)\n+      node.tag === HostSingleton\n     ) {\n       const publicInst = node.stateNode;\n       if (test(publicInst)) {\n@@ -419,11 +419,7 @@ function getParent(inst) {\n     \/\/ events to their parent. We could also go through parentNode on the\n     \/\/ host node but that wouldn't work for React Native and doesn't let us\n     \/\/ do the portal feature.\n-  } while (\n-    inst &&\n-    inst.tag !== HostComponent &&\n-    (!enableHostSingletons ? true : inst.tag !== HostSingleton)\n-  );\n+  } while (inst && inst.tag !== HostComponent && inst.tag !== HostSingleton);\n   if (inst) {\n     return inst;\n   }\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiber.js b\/packages\/react-reconciler\/src\/ReactFiber.js\nindex de626f2b72..53d7bc601a 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiber.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiber.js\n@@ -38,7 +38,6 @@ import {\n   enableTransitionTracing,\n   enableDebugTracing,\n   enableFloat,\n-  enableHostSingletons,\n   enableDO_NOT_USE_disableStrictPassiveEffect,\n } from 'shared\/ReactFeatureFlags';\n import {NoFlags, Placement, StaticMask} from '.\/ReactFiberFlags';\n@@ -510,12 +509,7 @@ export function createFiberFromTypeAndProps(\n       }\n     }\n   } else if (typeof type === 'string') {\n-    if (\n-      enableFloat &&\n-      supportsResources &&\n-      enableHostSingletons &&\n-      supportsSingletons\n-    ) {\n+    if (enableFloat && supportsResources && supportsSingletons) {\n       const hostContext = getHostContext();\n       fiberTag = isHostHoistableType(type, pendingProps, hostContext)\n         ? HostHoistable\n@@ -527,7 +521,7 @@ export function createFiberFromTypeAndProps(\n       fiberTag = isHostHoistableType(type, pendingProps, hostContext)\n         ? HostHoistable\n         : HostComponent;\n-    } else if (enableHostSingletons && supportsSingletons) {\n+    } else if (supportsSingletons) {\n       fiberTag = isHostSingletonType(type) ? HostSingleton : HostComponent;\n     } else {\n       fiberTag = HostComponent;\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiberBeginWork.js b\/packages\/react-reconciler\/src\/ReactFiberBeginWork.js\nindex 7d9ddba406..b4693697bf 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiberBeginWork.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiberBeginWork.js\n@@ -106,7 +106,6 @@ import {\n   enableLegacyHidden,\n   enableCPUSuspense,\n   enableFloat,\n-  enableHostSingletons,\n   enableFormActions,\n   enableAsyncActions,\n   enablePostpone,\n@@ -4151,7 +4150,7 @@ function beginWork(\n       }\n     \/\/ Fall through\n     case HostSingleton:\n-      if (enableHostSingletons && supportsSingletons) {\n+      if (supportsSingletons) {\n         return updateHostSingleton(current, workInProgress, renderLanes);\n       }\n     \/\/ Fall through\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiberCommitWork.js b\/packages\/react-reconciler\/src\/ReactFiberCommitWork.js\nindex 79cd32c4e4..13cece7ed9 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiberCommitWork.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiberCommitWork.js\n@@ -53,7 +53,6 @@ import {\n   enableUseEffectEventHook,\n   enableFloat,\n   enableLegacyHidden,\n-  enableHostSingletons,\n   alwaysThrottleRetries,\n } from 'shared\/ReactFeatureFlags';\n import {\n@@ -1527,9 +1526,7 @@ function hideOrUnhideAllChildren(finishedWork: Fiber, isHidden: boolean) {\n         (enableFloat && supportsResources\n           ? node.tag === HostHoistable\n           : false) ||\n-        (enableHostSingletons && supportsSingletons\n-          ? node.tag === HostSingleton\n-          : false)\n+        (supportsSingletons ? node.tag === HostSingleton : false)\n       ) {\n         if (hostSubtreeRoot === null) {\n           hostSubtreeRoot = node;\n@@ -1748,9 +1745,7 @@ function isHostParent(fiber: Fiber): boolean {\n     fiber.tag === HostComponent ||\n     fiber.tag === HostRoot ||\n     (enableFloat && supportsResources ? fiber.tag === HostHoistable : false) ||\n-    (enableHostSingletons && supportsSingletons\n-      ? fiber.tag === HostSingleton\n-      : false) ||\n+    (supportsSingletons ? fiber.tag === HostSingleton : false) ||\n     fiber.tag === HostPortal\n   );\n }\n@@ -1777,9 +1772,7 @@ function getHostSibling(fiber: Fiber): ?Instance {\n     while (\n       node.tag !== HostComponent &&\n       node.tag !== HostText &&\n-      (!(enableHostSingletons && supportsSingletons)\n-        ? true\n-        : node.tag !== HostSingleton) &&\n+      (!supportsSingletons ? true : node.tag !== HostSingleton) &&\n       node.tag !== DehydratedFragment\n     ) {\n       \/\/ If it is not host node and, we might have a host node inside it.\n@@ -1810,7 +1803,7 @@ function commitPlacement(finishedWork: Fiber): void {\n     return;\n   }\n \n-  if (enableHostSingletons && supportsSingletons) {\n+  if (supportsSingletons) {\n     if (finishedWork.tag === HostSingleton) {\n       \/\/ Singletons are already in the Host and don't need to be placed\n       \/\/ Since they operate somewhat like Portals though their children will\n@@ -1823,7 +1816,7 @@ function commitPlacement(finishedWork: Fiber): void {\n \n   switch (parentFiber.tag) {\n     case HostSingleton: {\n-      if (enableHostSingletons && supportsSingletons) {\n+      if (supportsSingletons) {\n         const parent: Instance = parentFiber.stateNode;\n         const before = getHostSibling(finishedWork);\n         \/\/ We only have the top Fiber that was inserted but we need to recurse down its\n@@ -1879,7 +1872,7 @@ function insertOrAppendPlacementNodeIntoContainer(\n     }\n   } else if (\n     tag === HostPortal ||\n-    (enableHostSingletons && supportsSingletons ? tag === HostSingleton : false)\n+    (supportsSingletons ? tag === HostSingleton : false)\n   ) {\n     \/\/ If the insertion itself is a portal, then we don't want to traverse\n     \/\/ down its children. Instead, we'll get insertions from each child in\n@@ -1914,7 +1907,7 @@ function insertOrAppendPlacementNode(\n     }\n   } else if (\n     tag === HostPortal ||\n-    (enableHostSingletons && supportsSingletons ? tag === HostSingleton : false)\n+    (supportsSingletons ? tag === HostSingleton : false)\n   ) {\n     \/\/ If the insertion itself is a portal, then we don't want to traverse\n     \/\/ down its children. Instead, we'll get insertions from each child in\n@@ -2048,7 +2041,7 @@ function commitDeletionEffectsOnFiber(\n       \/\/ Fall through\n     }\n     case HostSingleton: {\n-      if (enableHostSingletons && supportsSingletons) {\n+      if (supportsSingletons) {\n         if (!offscreenSubtreeWasHidden) {\n           safelyDetachRef(deletedFiber, nearestMountedAncestor);\n         }\n@@ -2711,7 +2704,7 @@ function commitMutationEffectsOnFiber(\n       \/\/ Fall through\n     }\n     case HostSingleton: {\n-      if (enableHostSingletons && supportsSingletons) {\n+      if (supportsSingletons) {\n         if (flags & Update) {\n           const previousWork = finishedWork.alternate;\n           if (previousWork === null) {\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiberCompleteWork.js b\/packages\/react-reconciler\/src\/ReactFiberCompleteWork.js\nindex 411dee4c0b..78dd30cd5f 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiberCompleteWork.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiberCompleteWork.js\n@@ -33,7 +33,6 @@ import type {TracingMarkerInstance} from '.\/ReactFiberTracingMarkerComponent';\n import type {Cache} from '.\/ReactFiberCacheComponent';\n import {\n   enableLegacyHidden,\n-  enableHostSingletons,\n   enableSuspenseCallback,\n   enableScopeAPI,\n   enableProfilerTimer,\n@@ -233,9 +232,7 @@ function appendAllChildren(\n         appendInitialChild(parent, node.stateNode);\n       } else if (\n         node.tag === HostPortal ||\n-        (enableHostSingletons && supportsSingletons\n-          ? node.tag === HostSingleton\n-          : false)\n+        (supportsSingletons ? node.tag === HostSingleton : false)\n       ) {\n         \/\/ If we have a portal child, then we don't want to traverse\n         \/\/ down its children. Instead, we'll get insertions from each child in\n@@ -1177,7 +1174,7 @@ function completeWork(\n       \/\/ Fall through\n     }\n     case HostSingleton: {\n-      if (enableHostSingletons && supportsSingletons) {\n+      if (supportsSingletons) {\n         popHostContext(workInProgress);\n         const rootContainerInstance = getRootHostContainer();\n         const type = workInProgress.type;\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiberHotReloading.js b\/packages\/react-reconciler\/src\/ReactFiberHotReloading.js\nindex 3bc3755bb9..090f1311b4 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiberHotReloading.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiberHotReloading.js\n@@ -14,7 +14,7 @@ import type {Fiber, FiberRoot} from '.\/ReactInternalTypes';\n import type {Instance} from '.\/ReactFiberConfig';\n import type {ReactNodeList} from 'shared\/ReactTypes';\n \n-import {enableHostSingletons, enableFloat} from 'shared\/ReactFeatureFlags';\n+import {enableFloat} from 'shared\/ReactFeatureFlags';\n import {\n   flushSync,\n   scheduleUpdateOnFiber,\n@@ -469,9 +469,7 @@ function findChildHostInstancesForFiberShallowly(\n       if (\n         node.tag === HostComponent ||\n         (enableFloat ? node.tag === HostHoistable : false) ||\n-        (enableHostSingletons && supportsSingletons\n-          ? node.tag === HostSingleton\n-          : false)\n+        (supportsSingletons ? node.tag === HostSingleton : false)\n       ) {\n         \/\/ We got a match.\n         foundHostInstances = true;\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiberHydrationContext.js b\/packages\/react-reconciler\/src\/ReactFiberHydrationContext.js\nindex c1ee83c2c8..a0838ea331 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiberHydrationContext.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiberHydrationContext.js\n@@ -35,10 +35,7 @@ import {\n   NoFlags,\n   DidCapture,\n } from '.\/ReactFiberFlags';\n-import {\n-  enableHostSingletons,\n-  enableClientRenderFallbackOnTextMismatch,\n-} from 'shared\/ReactFeatureFlags';\n+import {enableClientRenderFallbackOnTextMismatch} from 'shared\/ReactFeatureFlags';\n \n import {\n   createFiberFromHostInstanceForDeletion,\n@@ -426,7 +423,7 @@ function throwOnHydrationMismatch(fiber: Fiber) {\n }\n \n function claimHydratableSingleton(fiber: Fiber): void {\n-  if (enableHostSingletons && supportsSingletons) {\n+  if (supportsSingletons) {\n     if (!isHydrating) {\n       return;\n     }\n@@ -801,7 +798,7 @@ function popHydrationState(fiber: Fiber): boolean {\n   }\n \n   let shouldClear = false;\n-  if (enableHostSingletons && supportsSingletons) {\n+  if (supportsSingletons) {\n     \/\/ With float we never clear the Root, or Singleton instances. We also do not clear Instances\n     \/\/ that have singleton text content\n     if (\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiberTreeReflection.js b\/packages\/react-reconciler\/src\/ReactFiberTreeReflection.js\nindex 8828017eee..c5c5944efd 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiberTreeReflection.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiberTreeReflection.js\n@@ -25,7 +25,7 @@ import {\n   SuspenseComponent,\n } from '.\/ReactWorkTags';\n import {NoFlags, Placement, Hydrating} from '.\/ReactFiberFlags';\n-import {enableFloat, enableHostSingletons} from 'shared\/ReactFeatureFlags';\n+import {enableFloat} from 'shared\/ReactFeatureFlags';\n \n const ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;\n \n@@ -281,7 +281,7 @@ function findCurrentHostFiberImpl(node: Fiber): Fiber | null {\n   if (\n     tag === HostComponent ||\n     (enableFloat ? tag === HostHoistable : false) ||\n-    (enableHostSingletons ? tag === HostSingleton : false) ||\n+    tag === HostSingleton ||\n     tag === HostText\n   ) {\n     return node;\n@@ -312,7 +312,7 @@ function findCurrentHostFiberWithNoPortalsImpl(node: Fiber): Fiber | null {\n   if (\n     tag === HostComponent ||\n     (enableFloat ? tag === HostHoistable : false) ||\n-    (enableHostSingletons ? tag === HostSingleton : false) ||\n+    tag === HostSingleton ||\n     tag === HostText\n   ) {\n     return node;\ndiff --git a\/packages\/shared\/ReactFeatureFlags.js b\/packages\/shared\/ReactFeatureFlags.js\nindex 7411bc7d9a..2ede92b1c0 100644\n--- a\/packages\/shared\/ReactFeatureFlags.js\n+++ b\/packages\/shared\/ReactFeatureFlags.js\n@@ -105,8 +105,6 @@ export const enableSuspenseAvoidThisFallbackFizz = false;\n \n export const enableCPUSuspense = __EXPERIMENTAL__;\n \n-export const enableHostSingletons = true;\n-\n export const enableFloat = true;\n \n \/\/ Enables unstable_useMemoCache hook, intended as a compilation target for\ndiff --git a\/packages\/shared\/forks\/ReactFeatureFlags.native-fb.js b\/packages\/shared\/forks\/ReactFeatureFlags.native-fb.js\nindex 0c04991e13..5c224fd782 100644\n--- a\/packages\/shared\/forks\/ReactFeatureFlags.native-fb.js\n+++ b\/packages\/shared\/forks\/ReactFeatureFlags.native-fb.js\n@@ -83,7 +83,6 @@ export const enableServerContext = false;\n export const enableTransitionTracing = false;\n \n export const enableFloat = true;\n-export const enableHostSingletons = true;\n \n export const useModernStrictMode = false;\n export const enableDO_NOT_USE_disableStrictPassiveEffect = false;\ndiff --git a\/packages\/shared\/forks\/ReactFeatureFlags.native-oss.js b\/packages\/shared\/forks\/ReactFeatureFlags.native-oss.js\nindex 70105f99ce..b8203b3b3c 100644\n--- a\/packages\/shared\/forks\/ReactFeatureFlags.native-oss.js\n+++ b\/packages\/shared\/forks\/ReactFeatureFlags.native-oss.js\n@@ -68,7 +68,6 @@ export const enableServerContext = false;\n export const enableTransitionTracing = false;\n \n export const enableFloat = true;\n-export const enableHostSingletons = true;\n \n export const useModernStrictMode = false;\n export const enableDO_NOT_USE_disableStrictPassiveEffect = false;\ndiff --git a\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.js b\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.js\nindex 1f1766c617..611160e2a1 100644\n--- a\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.js\n+++ b\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.js\n@@ -68,7 +68,6 @@ export const enableServerContext = false;\n export const enableTransitionTracing = false;\n \n export const enableFloat = true;\n-export const enableHostSingletons = true;\n \n export const useModernStrictMode = false;\n export const enableDO_NOT_USE_disableStrictPassiveEffect = false;\ndiff --git a\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.native.js b\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.native.js\nindex 18fa67530a..60a15318c7 100644\n--- a\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.native.js\n+++ b\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.native.js\n@@ -66,7 +66,6 @@ export const enableServerContext = false;\n export const enableTransitionTracing = false;\n \n export const enableFloat = true;\n-export const enableHostSingletons = true;\n \n export const useModernStrictMode = false;\n export const enableDO_NOT_USE_disableStrictPassiveEffect = false;\ndiff --git a\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.www.js b\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.www.js\nindex c4131e3312..c567879231 100644\n--- a\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.www.js\n+++ b\/packages\/shared\/forks\/ReactFeatureFlags.test-renderer.www.js\n@@ -68,7 +68,6 @@ export const enableServerContext = false;\n export const enableTransitionTracing = false;\n \n export const enableFloat = true;\n-export const enableHostSingletons = true;\n \n export const useModernStrictMode = false;\n export const enableDO_NOT_USE_disableStrictPassiveEffect = false;\ndiff --git a\/packages\/shared\/forks\/ReactFeatureFlags.www.js b\/packages\/shared\/forks\/ReactFeatureFlags.www.js\nindex a597b8e980..01ae3eae59 100644\n--- a\/packages\/shared\/forks\/ReactFeatureFlags.www.js\n+++ b\/packages\/shared\/forks\/ReactFeatureFlags.www.js\n@@ -54,7 +54,6 @@ export const enableCPUSuspense = true;\n export const enableFloat = true;\n export const enableUseMemoCacheHook = true;\n export const enableUseEffectEventHook = true;\n-export const enableHostSingletons = true;\n export const enableClientRenderFallbackOnTextMismatch = false;\n export const enableFilterEmptyStringAttributesDOM = true;\n \n","commit":{"authorName":"Jan Kassens","authorEmail":"jkassens@meta.com","authoredAt":"2023-11-16T17:42:03-05:00","subject":"[cleanup] remove enableHostSingletons feature flag (#27583)","shortRevision":"1a65d036ef","revision":"1a65d036ef057b07a6b15f5604e399f91bc5ed73"}}</article></body></html>

dillon1000/react

Files changed